[Libclc-dev] opencl-example: didn't compile (run) with latest LLVM git (for some days)

Dieter N├╝tzel via Libclc-dev libclc-dev at lists.llvm.org
Wed Sep 20 03:50:57 PDT 2017

Worked OK with older version (for me latest was #6c9f36933c5) but with 
your 'clover: Fix build after LLVM r313390' reverted.

Now I get this during compilation tries:

/opt/opencl-example> make
gcc -o hello_world hello_world.o cl_simple.o cl_util.o -L/usr/local/lib 
/usr/local/lib64/libOpenCL.so: undefined reference to 
`llvm::LLVMContext::getDiagnosticHandler() const at LLVM_6.0'
/usr/local/lib64/libOpenCL.so: undefined reference to 
`llvm::isKnownNonNull(llvm::Value const*)@LLVM_6.0'
/usr/local/lib64/libOpenCL.so: undefined reference to 
`llvm::DIBuilder::createCompileUnit(unsigned int, llvm::DIFile*, 
llvm::StringRef, bool, llvm::StringRef, unsigned int, llvm::StringRef, 
llvm::DICompileUnit::DebugEmissionKind, unsigned long, bool, 
/usr/local/lib64/libOpenCL.so: undefined reference to 
`llvm::LLVMContext::setDiagnosticHandler(void (*)(llvm::DiagnosticInfo 
const&, void*), void*, bool)@LLVM_6.0'
collect2: error: ld returned 1 exit status
make: *** [Makefile:10: hello_world] Fehler 1


For reference (running '/opt/amdgpu-pro/bin/clinfo'):

/opt/opencl-example> /opt/amdgpu-pro/bin/clinfo
/opt/amdgpu-pro/bin/clinfo: /usr/local/lib64/libOpenCL.so.1: no version 
information available (required by /opt/amdgpu-pro/bin/clinfo)
/opt/amdgpu-pro/bin/clinfo: /usr/local/lib64/libOpenCL.so.1: no version 
information available (required by /opt/amdgpu-pro/bin/clinfo)
ATTENTION: default value of option mesa_glthread overridden by 
ATTENTION: default value of option radeonsi_assume_no_z_fights 
overridden by environment.
ATTENTION: default value of option radeonsi_commutative_blend_add 
overridden by environment.
ATTENTION: default value of option mesa_glthread overridden by 
Number of platforms:                             1
   Platform Profile:                              FULL_PROFILE
   Platform Version:                              OpenCL 1.1 Mesa 
17.3.0-devel (git-94fef19509)
   Platform Name:                                 Clover
   Platform Vendor:                               Mesa
   Platform Extensions:                           cl_khr_icd

   Platform Name:                                 Clover
Number of devices:                               1
   Device Type:                                   CL_DEVICE_TYPE_GPU
   Vendor ID:                                     1002h
   Max compute units:                             36
   Max work items dimensions:                     3
     Max work items[0]:                           256
     Max work items[1]:                           256
     Max work items[2]:                           256
   Max work group size:                           256
   Preferred vector width char:                   16
   Preferred vector width short:                  8
   Preferred vector width int:                    4
   Preferred vector width long:                   2
   Preferred vector width float:                  4
   Preferred vector width double:                 2
   Native vector width char:                      16
   Native vector width short:                     8
   Native vector width int:                       4
   Native vector width long:                      2
   Native vector width float:                     4
   Native vector width double:                    2
   Max clock frequency:                           1411Mhz
   Address bits:                                  64
   Max memory allocation:                         6010904166
   Image support:                                 No
   Max size of kernel argument:                   1024
   Alignment (bits) of base address:              1024
   Minimum alignment (bytes) for any datatype:    128
   Single precision floating point capability
     Denorms:                                     No
     Quiet NaNs:                                  Yes
     Round to nearest even:                       Yes
     Round to zero:                               No
     Round to +ve and infinity:                   No
     IEEE754-2008 fused multiply-add:             No
   Cache type:                                    None
   Cache line size:                               0
   Cache size:                                    0
   Global memory size:                            8587005952
   Constant buffer size:                          2147483647
   Max number of constant args:                   16
   Local memory type:                             Scratchpad
   Local memory size:                             32768
/opt/amdgpu-pro/bin/clinfo: relocation error: 
/usr/local/lib64/libOpenCL.so.1: symbol 
version LLVM_6.0 not defined in file libLLVM-6.0svn.so with link time 

More information about the Libclc-dev mailing list